ISSUE:

Some 1996 and all 1997 E4OD transmissions have been built with a needle bearing located between the forward planetary carrier and forward ring gear hub. This is a revised design for 1997 which was pulled ahead as a running change for 1996. This needle bearing replaces the #10A thrust washer. The slots in the planet carrier for the thrust washer tabs were also removed. The forward ring gear hub was changed to accommodate the needle bearing instead of the thrust washer.

ACTION:

If service is required on the needle bearing, hub or planet assembly, use a new Service Kit (F7TZ-7B067-AB) to service these components. This kit will service all E4OD transmissions. The new design forward planet carrier #10A needle bearing, forward ring gear hub and forward planet assemblies are not interchangeable with the past design components. Refer to the following Service Procedure and Part Application Chart for details.

SERVICE PROCEDURE

NOTE:

IF THE FORWARD PLANET CARRIER HAS SLOTS (FIGURE 1) FOR THE THRUST WASHER TABS, IT DOES NOT HAVE TO BE REPLACED UNLESS IT IS DAMAGED. THE PLANET CARRIER MUST HAVE SLOTS TO BE USED WITH THE #10A THRUST WASHER. EITHER PLANET ASSEMBLY WITH OR WITHOUT SLOTS CAN BE USED WITH THE BEARING.

Refer to Figure 1 and the Part Application Chart for correct part identification and proper part usage. Follow all normal service procedures as outlined in the appropriate model/year Service Manual, Section 07-01A or appropriate model 1997 Workshop Manual, Section 307-01.

Figure 1 – Article 96-24-18

Service Kit F7TZ-7B067-AB includes the following:

One (1) #10A Needle Bearing

One (1) Forward Ring Gear Hub

One (1) Instruction Sheet (I.S. 7209A)

PART APPLICATION CHART

Part

Current Design

Revised Design

Forward Planet Assembly *

E9TZ-7A398-A

F7TZ-7A398-BA

#10A Forward Thrust Washer **

Replaced by Kit F7TZ-7B067-AB

N/A

#10A Forward Needle Bearing

N/A

Included in Kit F7TZ-7B067-AB

Forward Ring Gear Hub ***

Replaced by Kit F7TZ-7B067-AB

Included in Kit F7TZ-7B067-AB

* The planet assembly may not require replacement. The planet assembly with thrust washer tab slots will work with the bearing or thrust washer. The planet assembly without slots will only work with the needle bearing.

** The previous design #10A thrust washer (E9TZ-7A166-A) is no longer available for service. Do not attempt to order this part. It is now serviced as part of Service Kit (F7TZ-7B067-AB).

*** Previous design ring gear hub (E9TZ-7B067-A) is no longer available. Do not attempt to order this part. It is now serviced as part of Service Kit (F7TZ-7B067-AB).